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+-- Forum: Sphere 0.56d (/Forum-Sphere-0-56d)
+--- Forum: General Help (/Forum-General-Help)
+--- Thread: NPC see through wall (/Thread-NPC-see-through-wall)
NPC see through wall - Crescens - 01-16-2017 11:37 PM
Hello guys, I had some issues with wall of stone, paralyze, X, and fire field which you can't attack a player when he's X on wall of stone, I fixed it, now I can do it, attack BUT I noticed monsters can attack/see you through some wall ( like house walls ) and players can use archer or even magic to hit through wall as well, how can I fix it ? ( Sphere 56.b )
Crescens
RE: NPC see through wall - MirroR - 01-17-2017 03:55 AM
PHP Code:
[ITEMDEF 07a]
DEFNAME=i_wall_stone_7
TYPE=T_WALL
CAN=CAN_I_BLOCK
RESOURCES=100 i_rock_plain
CATEGORY=Buildings - Walls
SUBSECTION=Stone Wall 3
DESCRIPTION=@
DUPELIST=07b,07c,07d,07e,07f,080,081,082,083,084,085,086,087,088,089,08a,08b,08c,08d,08e,08f,0364,0365
on=@create
id i_wall_stone_8
dispid 080
I hope it is correct.
RE: NPC see through wall - Crescens - 01-24-2017 07:08 AM
Hello MirroR,
I did it, it now "works" somehow better, but now I can't hit the player inside the X ( wall of stone ) I mean, where is supposed to reach the other player ( diagonal )
RE: NPC see through wall - Coruja - 01-24-2017 05:33 PM
this is a fix, not an issue
on really old sphere versions < 56b, the LOS check doesn't work correctly on diagonal positions, allowing the attacker get line of sight of the target traped inside the wall X. So there's no way to get line of sight to something on the other side of the wall, but sphere was incorrectly allowing the LOS
this bug got fixed on sphere 56b, making the LOS work correctly on diagonal checks, which will block the LOS to the char stuck inside the wall X
the same occur on fire field, because the char doesn't have LOS to the position inside the wall X, so it also can't cast spells targeting this blocked position
so maybe the only way to "unfix" this is enabling EF_NoDiagonalCheckLOS on sphere.ini to disable this diagonal checks, making sphere return the wrong result again. But honestly I highly don't recommend enable this setting, because disabling diagonal LOS checks will also bring many unwanted behaviors/exploits, like players using bow or casting spells through house walls, players killing NPCs on strategic locations between walls where the player can hit the NPC but the NPC can't hit the player, etc